In Pakistan, a coalition of Sindhi civil-society groups and the Sindhudesh movement has raised concerns over alleged clandestine nuclear-related activities in remote mountainous areas of Sindh Province. In a formal letter to the United Nations Secretary-General, the International Atomic Energy Agency, the UN Office for Disarmament Affairs, and the Office of the UN High Commissioner for Human Rights, the groups claimed that multiple underground tunnels and chamber systems had been constructed in areas north of Jamshoro near Noriabad, around Kambar-Shahdadkot, and west of Manchar Lake. 

The letter was shared by Chairman of Jeay Sindh Muttahida Mahaz, Shafi Burfat, on his social media accounts. These tunnels are reportedly under heightened military secrecy, with restricted access and intensive construction activity, and may be used for nuclear material storage or related processes. The groups warned that if nuclear materials are indeed present in these underground facilities, there could be severe risks of radioactive contamination, environmental damage, and violations of international nuclear-safety and non-proliferation standards. The Group has urged for immediate international verification to protect civilians and safeguard the environment.